Hello everyone! i did a search and can't find the answer to this question. I am trying out different sort of nuts and seeds for pesto, and I have half a bag of whole roasted pumpkin seeds in the cupboard. Do you think I could use these for pesto? Would a Ninja blender grind them up fine enough? I have a mortar and pestle, too. All the recipes I looked at called for pepitas, the unshelled sort. I don't want to use up a bunch of ingredients attempting this if it will turn out a gritty, sharp mess. Maybe if I soaked them first? Thoughts?